Electronics Forum | Fri Feb 19 16:45:55 EST 1999 | Steve Gregory
Hello Ryan! There's a company called Camalot that sells dispensers that in my opinion, make one of the better dispensers on the market. They use what's called a rotary-positive displacement pump when dispensing... much more precise and accurate
Electronics Forum | Tue Jun 05 21:14:10 EDT 2001 | davef
You aren't going to post our stuff on your "Hey, I'm the wizard site", are you? Board fab, Pad coatings, OSP 1 OSPs: Imidazole (Via Systems) is good. Entek (Enthone) works, but requires strict thickness control in fab. 2 Enthone CU56 allows one t
Electronics Forum | Fri May 21 15:20:26 EDT 1999 | JohnW
| I normally handle the soldering issues for this facility but a question was asked of me -- What the H@## is this stuff and what is causing it? Was wondering of I could get some input from any Guru on plating issues. Need info ASAP!!!!!!!!!!!!!!!!!
Electronics Forum | Fri Jan 15 16:55:50 EST 1999 | Chrys
| | | Hello, | | | | | | We are qualifying new sources of PWB vendors. We've got the first lot of "produciton" boards in and we want to put them through the paces before turing the vendors on. | | | | | | So far, the tests I can think of performin
Electronics Forum | Mon Jul 17 13:37:35 EDT 2006 | carln
Here is something I copied from Circuitnet.com. This appears to answer your question and then some... http://www.circuitnet.com/experts/ Ask the Experts Jul 17, 2006 What type of cleaner method is preferred for lead-free stencils? What type of s
Electronics Forum | Mon May 31 15:09:56 EDT 1999 | JohnW
| | | | | | | | I have always thought it to be a good practice to wash SMA's with water soluble paste (WS609) soon after reflow. Is there a time limit as to how long a board should sit after reflow before washing said board? For instance; processi
Electronics Forum | Mon May 31 15:10:14 EDT 1999 | JohnW
| | | | | | | | I have always thought it to be a good practice to wash SMA's with water soluble paste (WS609) soon after reflow. Is there a time limit as to how long a board should sit after reflow before washing said board? For instance; processi
Electronics Forum | Fri Jan 15 17:13:07 EST 1999 | Earl Moon
| | | | Hello, | | | | | | | | We are qualifying new sources of PWB vendors. We've got the first lot of "produciton" boards in and we want to put them through the paces before turing the vendors on. | | | | | | | | So far, the tests I can think of
Electronics Forum | Tue May 26 20:18:09 EDT 1998 | Justin Medernach
| | | | I'm reviewing my board fab spec. It calls for a minimum SnPb thickness of 50 microinches on HASL PWB's. I've looked at other specs that call out anything from 30 to 80 microinches, and others that just say the copper pad must be covered and
Electronics Forum | Sat Aug 03 07:29:20 EDT 2002 | davef
IPC-PE-740 "Troubleshooting for Printed Board Manufacture and Assembly" has words to the effect of � 1.5---BAKING Laminate materials are baked several times during the manufacture of a printed wiring board. There are four major reasons for
